Fun Facts About Planet Earth
As well as being our home, the Earth is also one of the most fascinating planets in our Solar system.
For one thing, it is the only planet where we know for sure that life exists! (Although there is still some hope that microorganisms might be found on Mars, or failing that, evidence that life existed there at some time in the past).
Other features that make the Earth unique are that it is the densest planet in the Solar System, and also that it is the largest of the four terrestrial planets.
It is also the only planet in the Solar System with a friendly atmosphere and gravity, where humans can live and breathe without the aid of space suits and space ships.
I hope that you enjoy reading my 15 fun facts about Planet Earth and find them interesting!
1. The Earth is the third planet from the Sun. Our nearest neighbors are Venus, the second planet from the Sun, and Mars, the fourth planet.
2. The Earth is the fifth largest planet in the Solar System and the largest of the terrestrial planets. (A terrestrial planet is one that is mainly composed of rock and metal, rather than gases).
3. The Earth was formed about 4.6 billion years ago and life appeared within the first million years.
4. The planet has 10 million species of life living on it, including our own human species. It is the body in the Solar System that we know has life on it.
Quotes About The Earth
"It suddenly struck me that that tiny pea, pretty and blue, was the Earth. I put up my thumb and shut one eye, and my thumb blotted out the planet Earth. I didn't feel like a giant. I felt very, very small." Neil Armstrong
"How inappropriate to call this planet Earth when it is quite clearly Ocean." Arthur C. Clarke
"We love our planet Earth. We should - it is our home, and there's no place like home. There can't ever be a better place than Earth." Dimitar Sasselov
5. 70 percent of the globe's surface is covered by water. There are 5 oceans: the Atlantic, Pacific, Indian, Southern, and Arctic. The oceans are 2 miles deep on average.
6. The Earth's atmosphere consists of many layers, including the mesosphere, ionosphere, exosphere, and the thermosphere. The closest layer to the surface is called the troposphere. It is this layer that supports all life on Earth. At only 10 miles thick, the troposphere is also the thinnest layer of atmosphere.
7. The atmosphere is mainly made up of nitrogen (78%), oxygen (21%), argon (.93%), and carbon dioxide (0.03%).
8. The planet moves through space at 66,700 miles per hour.
9. The highest mountain on the globe is Everest in the Himalayas, but the biggest is Mauna Loa in Hawaii.
10. The Earth's distance from the Sun varies. The closest the planet comes to the Sun is 91million miles (146 million km) and the farthest is 94.5 million miles (152 million km).
More Quotes About Earth
"Personally, I do not know whether humankind is alone in this vast universe. But I do know that we should cherish our existence on this precious speck of matter... the greatest gift that could be bestowed upon us. For all practical purposes, there is only one planet Earth." Ban Ki-moon
"What if an asteroid were to strike planet Earth? What could we possibly do to prevent it? However many guys we have working on this problem, it can't possibly be enough." Timothy Noah
11. The globe's crust is made up of tectonic plates which move around and can clash with each other. As a result, there are about a million earthquakes taking place each year, although the vast majority of them are too weak to register.
12. The planet's diameter is 7,926 miles (12,756 km). The circumference at the equator of the globe is 24,901 miles (40,075 kilometers).
13. The planet has one moon called Luna. It is the second brightest thing in the sky when viewed from Earth. We know that the Moon was formed about 4.53 billion years ago, but how it was formed is subject to debate.
The most popular theory amongst scientists at present is that it was formed as the result of a giant impact, where a body the size of Mars, which scientists call Theia, smashed into the newly formed planet, throwing material out into orbit, which eventually gathered together to form the Moon.
14. The Earth is sometimes called The Blue Planet, because when it is viewed from space the combination of the oceans and atmosphere make it appear blue. The first full view color photo of the Earth was taken on December 7, 1972, as the Apollo 17 crew departed from the planet's orbit. The photo is known as the "Blue Marble" shot.
15. Amongst the millions of species of life are the human beings. There are just over 7 billion of us living on the planet, according to the United States Census Bureau. The people of the planet are split into groups that occupy around 200 different countries.
© 2015 Paul Goodman